If they contain only fluorine, chlorine and carbon they are called chlorofluorocarbons , or CFCs for short.
Stratospheric ozone over polar regions is subjected to enhanced seasonal depletion caused by emission of chlorofluorocarbons and other halogenated compounds.
The Caltech scientists suggest certain scenarios in which the impact could be similar to what chlorofluorocarbons inflicted on the ozone layer.
The hole isn't shrinking yet, but our use of aerosols and other chlorofluorocarbons is.
A brief reference to the destruction of the ozone layer by chlorofluorocarbons , which has greatly enhanced the risk of skin cancer through increased ultraviolet radiation, appears in the summary of that section.
Since excess chlorofluorocarbons have been released into the atmosphere, the protecting stratospheric ozone layer has decreased and humans and animals are exposed to increased ultraviolet radiation.
Refrigerator models made before 1994 may be insulated with chlorofluorocarbons , which also damage the earth's atmosphere.
In the last half of the twentieth century, the manufacture of chlorofluorocarbons for use as propellants in aerosol sprays and refrigerants has resulted in a slow mixing of these compounds with the stratosphere.
Up until the 1980s, a lot of liquefied-gas aerosol cans used chlorofluorocarbons as a propellant.
Ozone loss in Earth's stratosphere is caused primarily by chemical reactions with chlorine from human-produced compounds like chlorofluorocarbons .